ScienceDaily: Top News |
- Asian ozone pollution in Hawaii is tied to climate variability
- Plague or Black Death could re-emerge: Cause of one of the most devastating pandemics in human history revealed
- Belief in immortality hard-wired? Study examines development of children's 'prelife' reasoning
- Crowdsourced RNA designs outperform computer algorithms
- River of hydrogen flowing through space observed
- Traumatic spinal cord injuries on the rise in U.S.
- Bluebirds struggle to find happiness on island paradise
- Promising class of antibiotics discovered for treatment of drug-resistant tuberculosis
- Low vitamin D levels during pregnancy may increase risk of severe preeclampsia
- Choosing Wisely: Politics, economics of labeling low-value services
- Graphene-like material made of boron a possibility, experiments suggest
- Study identifies high level of 'food insecurity' among college students
- HIV medications dialogue differs by race, ethnicity
- Successful regeneration of human skeletal muscle in mice
- New brain-scanning technique shows when and where the brain processes visual information
- Solving a 30-year-old problem in massive star formation
- Quality of white matter in the brain is crucial for adding and multiplying (but not subracting and dividing)
- Nipping diabetes in the blood
- Researchers shed new light on double-lung transplants
- Permanent changes in brain genes may not be so permanent after all
- Facelift complications eased with help of new 3-D imaging technique
- Severity of spatial neglect after stroke predicts long-term mobility recovery in community
- Common crop pesticides kill honeybee larvae in the hive
- Lungs may suffer when certain elements go nano
- Good outcomes with staged surgery for epilepsy in children
- Visual system can retain considerable plasticity after extended blindness
- Silk coat for diamonds makes sleek new imaging, drug delivery tool
- Brain biomarker shows promise in heart
- How did we get four limbs? Because we have a belly
- Electrical generator uses bacterial spores to harness power of evaporating water
- Punctured cell membranes lead to high blood pressure
- 300,000-year-old hearth found: Microscopic evidence shows repeated fire use in one spot over time
- Sun-induced frowning: a possible cause of aggression?
- Rare genetic variations may account for life-threatening reaction to long-acting beta agonist drugs in some people
- FDA Approval of Revolutionary Two-Drug Combo to Treat Advanced Melanoma
- Fragmented sleep accelerates cancer growth
- Health care costs grow with body mass
- Electrical current sensors harvest wasted electromagnetic energy
- Immune system drives pregnancy complications after fetal surgery in mice
- Exceptionally close stellar explosion discovered
- Is there an ocean beneath our feet? Ocean water may reach upper mantle through deep sea faults
- Robotic operation for heart valve reconstruction holds promise
- Researchers discover new combination therapy to kill cancer
- Cannabis during pregnancy endangers fetal brain development
- Science of baby-making still a mystery for many women
- After the gunshot: Hospitalizations for firearm injuries prevalent among children
- Music therapy's positive effects on young cancer patients' coping skills, social integration
- New research warns world to prepare for power outages
- Protein measurements in the cell
- Your childhood memories are probably less accurate than you think
- Animate, inanimate, and social: How the brain categorizes information
- New method increases supply of embryonic stem cells
- Cracks in cellular transport system can be key to new generation of cancer therapies
- Quality improvement initiative improves asthma outcomes in teens
- Long-lived breast stem cells could retain cancer legacy
- Researchers discover process that turns 'good cholesterol' bad
| Asian ozone pollution in Hawaii is tied to climate variability Posted: 27 Jan 2014 04:38 PM PST Asian ozone pollution levels measured in Hawaii fluctuate with decade-long climate variations, according to a new study. |
| Posted: 27 Jan 2014 04:37 PM PST Scientists have discovered that two of the world's most devastating plagues – the plague of Justinian and the Black Death, each responsible for killing as many as half the people in Europe —- were caused by distinct strains of the same pathogen, one that faded out on its own, the other leading to worldwide spread and re-emergence in the late 1800s. These findings suggest a new strain of plague could emerge again in humans in the future. |
| Belief in immortality hard-wired? Study examines development of children's 'prelife' reasoning Posted: 27 Jan 2014 01:48 PM PST By examining children's ideas about "prelife," the time before conception, researchers found results which suggest that our bias toward immortality is a part of human intuition that naturally emerges early in life. And the part of us that is eternal, we believe, is not our skills or ability to reason, but rather our hopes, desires and emotions. |
| Crowdsourced RNA designs outperform computer algorithms Posted: 27 Jan 2014 01:48 PM PST An enthusiastic group of non-experts, working through an online interface and receiving feedback from lab experiments, has produced designs for RNA molecules that are consistently more successful than those generated by the best computerized design algorithms, researchers report. |
| River of hydrogen flowing through space observed Posted: 27 Jan 2014 01:44 PM PST Astronomers have discovered what could be a never-before-seen river of hydrogen flowing through space. This very faint, very tenuous filament of gas is streaming into the nearby galaxy NGC 6946 and may help explain how certain spiral galaxies keep up their steady pace of star formation. |
| Traumatic spinal cord injuries on the rise in U.S. Posted: 27 Jan 2014 11:19 AM PST The number of serious traumatic spinal cord injuries is on the rise in the United States, and the leading cause no longer appears to be motor vehicle crashes, but falls, new research suggests. |
| Bluebirds struggle to find happiness on island paradise Posted: 27 Jan 2014 11:19 AM PST A recent study shows that Eastern bluebirds in Ohio differ in a variety of ways from their relatives in Bermuda. |
| Promising class of antibiotics discovered for treatment of drug-resistant tuberculosis Posted: 27 Jan 2014 11:19 AM PST Scientists have discovered a promising new class of antibiotics that could aid efforts to overcome drug-resistance in tuberculosis (TB), a global killer. The drugs increased survival of mice infected with TB and were effective against drug-resistant strains of TB. |
| Low vitamin D levels during pregnancy may increase risk of severe preeclampsia Posted: 27 Jan 2014 11:19 AM PST Women who are deficient in vitamin D in the first 26 weeks of their pregnancy may be at risk of developing severe preeclampsia, a potentially life-threatening disorder diagnosed by an increase in blood pressure and protein in the urine, according to research. |
| Choosing Wisely: Politics, economics of labeling low-value services Posted: 27 Jan 2014 11:18 AM PST The Choosing Wisely campaign lists of services developed by physicians' specialty societies, is a good start to spark discussion between physicians their patients about treatments and tests that may not be warranted. But researchers say the list could be improved to include more common services and higher cost services. |
| Graphene-like material made of boron a possibility, experiments suggest Posted: 27 Jan 2014 11:18 AM PST Graphene, a sheet of carbon one atom thick, may soon have a new nanomaterial partner. In the lab and on supercomputers, chemists have determined that a cluster of 36 boron atoms forms a flat disc with a hexagonal hole in the middle. The shape fits theoretical predictions for a potential new nanomaterial: "borophene." |
| Study identifies high level of 'food insecurity' among college students Posted: 27 Jan 2014 11:18 AM PST One of the few studies of its type has found that a startling 59 percent of college students at one university were "food insecure" at some point during the previous year, with possible implications for academic success, physical and emotional health and other issues. |
| HIV medications dialogue differs by race, ethnicity Posted: 27 Jan 2014 11:18 AM PST Researchers found specific racial and ethnic differences in discussions of HIV medicine adherence in a newly published analysis of recorded office visits between 45 doctors and nurse practitioners and more than 400 patients. |
| Successful regeneration of human skeletal muscle in mice Posted: 27 Jan 2014 11:18 AM PST Researchers recently announced study findings showing the successful development of a humanized preclinical model for facioscapulohumeral muscular dystrophy, providing scientists with a much needed tool to accelerate novel therapeutic research and development. |
| New brain-scanning technique shows when and where the brain processes visual information Posted: 27 Jan 2014 11:17 AM PST New brain-scanning technique from Massachusetts Institute of Technology researchers allows scientists to see when and where the brain processes visual information. |
| Solving a 30-year-old problem in massive star formation Posted: 27 Jan 2014 11:17 AM PST Astrophysicists have found evidence strongly supporting a solution to a long-standing puzzle about the birth of some of the most massive stars in the universe. Young massive stars shine brightly in the ultraviolet, heating the gas around them, and it has long been a mystery why the hot gas doesn't explode outwards. Now, observations have confirmed predications that as the gas cloud collapses, it forms dense filamentary structures that absorb the star's ultraviolet radiation. |
| Posted: 27 Jan 2014 11:17 AM PST A new study has found that healthy 12-year-olds who score well in addition and multiplication have higher-quality white matter tracts. This correlation does not appear to apply to subtraction and division. |
| Posted: 27 Jan 2014 11:17 AM PST 79 million Americans are thought to have "prediabetes," a condition that puts them at risk of developing type-2 diabetes. Now researchers have discovered that a simple blood test can reveal an individual's risk of developing type-2 diabetes before they develop prediabetes -- far earlier than previously believed. The findings could help doctors provide earlier diagnosis and treatment. |
| Researchers shed new light on double-lung transplants Posted: 27 Jan 2014 11:17 AM PST In the largest retrospective study to date using data from the United Network for Organ Sharing database for adult double-lung transplants, researchers have shown that there is no statistically significant difference between rejection and mortality rates among double-lung transplant recipients when their transplanted organs came from donors whose blood type was identical or compatible to their own. |
| Permanent changes in brain genes may not be so permanent after all Posted: 27 Jan 2014 11:15 AM PST In normal development, all cells turn off genes they don't need, often by attaching a chemical methyl group to the DNA, a process called methylation. Historically, scientists believed methyl groups could only stick to a particular DNA sequence: a cytosine followed by a guanine, called CpG. But in recent years, they have been found on other sequences, and so-called non-CpG methylation has been found in stem cells, and in neurons in the brain. |
| Facelift complications eased with help of new 3-D imaging technique Posted: 27 Jan 2014 11:15 AM PST New imaging technology allows scientists to analyze what happens within the smallest blood vessels during a cosmetic facelift. This finding could be used to prevent accidents during procedures and help clinicians reverse the ill effects if an injection doesn't go as planned. |
| Severity of spatial neglect after stroke predicts long-term mobility recovery in community Posted: 27 Jan 2014 09:28 AM PST Stroke rehabilitation researchers report an association between acute, severe spatial neglect post stroke and long-term recovery of mobility. This new study indicates that severity of spatial neglect during the acute inpatient rehabilitation for right brain stroke may predict functional mobility in the community after discharge. |
| Common crop pesticides kill honeybee larvae in the hive Posted: 27 Jan 2014 09:28 AM PST Four pesticides commonly used on crops to kill insects and fungi also kill honeybee larvae within their hives, according to new research. Scientists also found that N-methyl-2-pyrrolidone -- an inert, or inactive, chemical commonly used as a pesticide additive -- is highly toxic to honeybee larvae. |
| Lungs may suffer when certain elements go nano Posted: 27 Jan 2014 09:21 AM PST Nanoparticles are used in all kinds of applications — electronics, medicine, cosmetics, even environmental clean-ups. More than 2,800 commercially available applications are now based on nanoparticles, and by 2017, the field is expected to bring in nearly $50 billion worldwide. But this influx of nanotechnology is not without risks, say researchers. But this influx of nanotechnology is not without risks, say researchers at Missouri University of Science and Technology. |
| Good outcomes with staged surgery for epilepsy in children Posted: 27 Jan 2014 09:21 AM PST A staged approach to epilepsy surgery -— with invasive brain monitoring followed by surgery in a single hospital stay —- is a safe and beneficial approach to treatment for complex cases of epilepsy in children, new research reports. |
| Visual system can retain considerable plasticity after extended blindness Posted: 27 Jan 2014 08:28 AM PST Deprivation of vision during critical periods of childhood development has long been thought to result in irreversible vision loss. Now, researchers have challenged that theory by studying a unique population of pediatric patients who were blind during these critical periods before removal of bilateral cataracts. |
| Silk coat for diamonds makes sleek new imaging, drug delivery tool Posted: 27 Jan 2014 08:27 AM PST Silk and diamonds aren't just for ties and jewelry anymore. They're ingredients for a new kind of tiny glowing particle that could provide doctors and researchers with a novel technique for biological imaging and drug delivery. A team of researchers describes this new hybrid diamond-silk material in a paper published. |
| Brain biomarker shows promise in heart Posted: 27 Jan 2014 08:27 AM PST A biomarker widely used to diagnose brain injury has shown early promise for assessing the severity of heart inflammation, or myocarditis, find researchers. |
| How did we get four limbs? Because we have a belly Posted: 27 Jan 2014 08:27 AM PST All of us backboned animals have four fins or limbs, one pair in front and one pair behind. How did our earliest ancestors settle into such a consistent arrangement of two pairs of appendages? Researchers in the Theoretical Biology Department at the University of Vienna and the Konrad Lorenz Institute for Evolution and Cognition Research have presented a new model for approaching this question in the current issue of the journal Evolution & Development. |
| Electrical generator uses bacterial spores to harness power of evaporating water Posted: 27 Jan 2014 07:12 AM PST A new type of electrical generator uses bacterial spores to harness the untapped power of evaporating water, according to new research. Its developers foresee electrical generators driven by changes in humidity from sun-warmed ponds and harbors. |
| Punctured cell membranes lead to high blood pressure Posted: 27 Jan 2014 07:12 AM PST Researchers have identified how a mutated protein can lead to holes in a protein sitting in a cell's membrane. Such holes cause high blood pressure, and the discovery can now lead to new and better medication for high blood pressure. |
| 300,000-year-old hearth found: Microscopic evidence shows repeated fire use in one spot over time Posted: 27 Jan 2014 07:12 AM PST When did humans really begin to control fire and use it for their daily needs? Scientists discovered in the Qesem Cave, an archaeological site near present-day Rosh Ha'ayin, the earliest evidence -- dating to around 300,000 years ago -- of unequivocal repeated fire building over a continuous period. These findings help answer the question and hint that those prehistoric humans already had a highly advanced social structure and intellectual capacity. |
| Sun-induced frowning: a possible cause of aggression? Posted: 27 Jan 2014 07:11 AM PST Research recently published examines how facial expression can trigger an emotional response. The authors set out to test this theory that mood can be governed by facial expression, to the extent that intensity of a person's smile bears a relationship to well-being, fulfillment and longevity. They conducted a study on involuntary sun-induced frowning and relationship to emotional state of the subject. |
| Posted: 27 Jan 2014 07:09 AM PST More than 25 million people in the United States have asthma, a chronic lung disease that inflames and narrows the airways causing recurring periods of wheezing, chest tightness, shortness of breath and coughing. Although several types of drugs are available to treat asthma, long-acting beta agonists (LABAs) are among the most commonly used and work well for most people. However, for a small subgroup of people with asthma, LABAs can cause severe, life-threatening side effects. |
| FDA Approval of Revolutionary Two-Drug Combo to Treat Advanced Melanoma Posted: 27 Jan 2014 07:09 AM PST Researchers have laid the groundwork for a revolutionary new combination therapy for the treatment of advanced melanoma – melanoma that cannot be removed surgically or has spread to other areas of the body. The newly FDA-approved therapy, Mekinist (trametinib) in combination with Tafinlar (dabrafenib), is one of the biggest advancements in melanoma treatment in the past 30 years. |
| Fragmented sleep accelerates cancer growth Posted: 27 Jan 2014 07:09 AM PST Poor-quality sleep with frequent awakenings can speed cancer growth, increase tumor aggressiveness and dampen the immune system's ability to control cancer. This study demonstrates the effects of sleep loss on tumor growth and invasiveness and points to a mechanism for therapy. |
| Health care costs grow with body mass Posted: 27 Jan 2014 07:09 AM PST Researchers report that health care costs increase in parallel with body mass measurements, even beginning at a recommended healthy weight. Pharmacy and medical costs may even double for obese people compared with those at a healthy weight, according to a recent study. |
| Electrical current sensors harvest wasted electromagnetic energy Posted: 27 Jan 2014 07:07 AM PST Electricity is the lifeblood of modern cities. It flows at every moment and everywhere to power up everything from home appliances which improve our comfort and convenience, to services like transportation, building, communication and manufacturing that are essential to our daily life. To ensure a reliable operation of power grids and a proper delivery of electricity to where it needs to be, it is crucial to have a loyal guard to keep watch on the activities of electricity transport. As technology advances, the safety, reliability and availability of electrical engineering assets and public utilities can now be guarded by one tiny chip of electrical current sensors. |
| Immune system drives pregnancy complications after fetal surgery in mice Posted: 27 Jan 2014 06:32 AM PST Researchers have shown that, in mice at least, pregnancy complications after fetal surgery are triggered by activation of the mother's T cells. |
| Exceptionally close stellar explosion discovered Posted: 27 Jan 2014 06:32 AM PST An exceptionally close stellar explosion discovered on Jan. 21 has become the focus of observatories around and above the globe, including several NASA spacecraft. The blast, designated SN 2014J, occurred in the galaxy M82 and lies only about 12 million light-years away. This makes it the nearest optical supernova in two decades and potentially the closest type Ia supernova to occur during the life of currently operating space missions. |
| Is there an ocean beneath our feet? Ocean water may reach upper mantle through deep sea faults Posted: 27 Jan 2014 06:32 AM PST Scientists have shown that deep sea fault zones could transport much larger amounts of water from Earth's oceans to the upper mantle than previously thought. |
| Robotic operation for heart valve reconstruction holds promise Posted: 27 Jan 2014 06:31 AM PST A potentially fatal bacterial disease of the heart, infective endocarditis frequently affects the heart's tricuspid valve, often resulting in permanent tissue damage. A reconstructive technique, in which the valve is repaired with a bioscaffold on which new tissue can grow, can give some patients a new lease on life. |
| Researchers discover new combination therapy to kill cancer Posted: 27 Jan 2014 06:31 AM PST Researchers looked at how to leverage current experimental therapies, in different combinations, to speed the fight against cancer. Scientific evidence suggests a specific combination approach is effective. |
| Cannabis during pregnancy endangers fetal brain development Posted: 27 Jan 2014 06:31 AM PST A current study by an international consortium of researchers shows that the consumption of Cannabis during pregnancy can impair the development of the fetus' brain with long-lasting effects after birth. Cannabis is particularly powerful to derail how nerve cells form connections, potentially limiting the amount of information the affected brain can process. |
| Science of baby-making still a mystery for many women Posted: 27 Jan 2014 06:31 AM PST A new study provides insight into how much women of reproductive age in the United States know about reproductive health. The study found that about 50 percent of reproductive-age women had never discussed their reproductive health with a medical provider and about 30 percent visited their reproductive health provider less than once a year or never. |
| After the gunshot: Hospitalizations for firearm injuries prevalent among children Posted: 27 Jan 2014 06:31 AM PST About 20 children per day in the United States are injured by firearms seriously enough to require hospitalization, and more than 6 percent of these children die from their injuries, according to a study. |
| Music therapy's positive effects on young cancer patients' coping skills, social integration Posted: 27 Jan 2014 06:31 AM PST A new study has found that adolescents and young adults undergoing cancer treatment gain coping skills and resilience-related outcomes when they participate in a therapeutic music process that includes writing song lyrics and producing videos. The findings indicate that such music therapy interventions can provide essential psychosocial support to help young patients positively adjust to cancer. |
| New research warns world to prepare for power outages Posted: 27 Jan 2014 06:30 AM PST Living without electricity in today's technological world may be difficult to imagine. Yet the reality of living without computers, mobile phones and entertainment systems, and managing a transport system thrown into chaos by an absence of traffic lights, trains and subways, may become increasingly common, according to a new study. |
| Protein measurements in the cell Posted: 27 Jan 2014 06:30 AM PST A network of chemists has developed an innovative method to study protein structures by means of magnetic labels. The ingenious thing about it is that the magnetic labels are directly incorporated inside the cell when the protein is naturally biosynthesized. The research results might have an impact on many areas of structural biology. |
| Your childhood memories are probably less accurate than you think Posted: 27 Jan 2014 06:30 AM PST How much detail can you reliably recall in your childhood memories? Actually very little, according to a new study with profound implications for our legal system. |
| Animate, inanimate, and social: How the brain categorizes information Posted: 27 Jan 2014 06:29 AM PST For our brain, animate and inanimate objects belong to different categories and any information about them is stored and processed by different networks. A study shows that there is also another category that is functionally distinct from the others, namely, the category of "social" groups. |
| New method increases supply of embryonic stem cells Posted: 27 Jan 2014 06:29 AM PST A new method allows for large-scale generation of human embryonic stem cells of high clinical quality. It also allows for production of such cells without destroying any human embryos. The discovery is a big step forward for stem cell research and for the high hopes for replacing damaged cells and thereby curing serious illnesses such as diabetes and Parkinson's disease. |
| Cracks in cellular transport system can be key to new generation of cancer therapies Posted: 27 Jan 2014 06:29 AM PST Researchers have discovered a critical point of failure in the microscopic transport system that operates inside every cell in the human body. |
| Quality improvement initiative improves asthma outcomes in teens Posted: 27 Jan 2014 06:24 AM PST Researchers have successfully carried out what is believed to be the first initiative conducted exclusively among teenagers to show significant improvement in their asthma outcomes. |
| Long-lived breast stem cells could retain cancer legacy Posted: 26 Jan 2014 10:46 AM PST Researchers have discovered that breast stem cells and their "daughters" have a much longer lifespan than previously thought, and are active in puberty and throughout life. |
| Researchers discover process that turns 'good cholesterol' bad Posted: 26 Jan 2014 10:46 AM PST Researchers have discovered the process by which high-density lipoprotein -- the so-called "good cholesterol" -- becomes dysfunctional, loses its cardio-protective properties, and instead promotes inflammation and atherosclerosis, or the clogging and hardening of the arteries. |
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